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[Solved!] Log into a server?

Gingerbreadman

By Gingerbreadman
in Modder Support

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Failender World Shaper

Failender

Posted
Posted

So. You want to automatically send commands to a Server in a predefined Intervall and reconnect when disconnecting.. I am not sure if I want to know where this is heading.

Ernio Reality Controller

Ernio

Posted
Posted

This is typical "try over and over again util you succed" case.

 

1. Setup ClientTickEvent and ClientDisconnectionFromServerEvent.

2. Create some static boolean "shouldAutoReconnect".

3. When you get DC, in your ClientDisconnectionFromServerEvent you can set boolean to true.

4. Use ClientTickEvent to check that boolean, then check current screen (instanceof GuiSomething).

5. Make whatever if statements you need and create some incrementation - make client try to reconnect every e.g 2sec (if conditions are met and you are not ingame) or whatever.

6. Done.

 

If you would need to directly know the moment when client faild to connect you can check if current screen displays error msg. Again - you need to do that per-tick with ClientTickEvent.

 

At least that''s what I'd do.

1.7.10 is no longer supported by forge, you are on your own.

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

FMLClientHandler.instance().connectToServer(FMLClientHandler.instance().getClient().currentScreen, new ServerData(null, Main.getConfigData().getIP() + ":" + Main.getConfigData().getPort()));

 

^ I am getting a null point exception while running this

Ernio Reality Controller

Ernio

Posted
Posted

Just look at callbacks :P

 

In GuiMultiplayer:

private void connectToServer(ServerData server)
    {
        net.minecraftforge.fml.client.FMLClientHandler.instance().connectToServer(this, server);
    }

 

You could assume that you need GuiMultiplayer.

1.7.10 is no longer supported by forge, you are on your own.

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

Just look at callbacks :P

 

In GuiMultiplayer:

private void connectToServer(ServerData server)
    {
        net.minecraftforge.fml.client.FMLClientHandler.instance().connectToServer(this, server);
    }

You could assume that you need GuiMultiplayer.

I keep getting a null pointer

 

java.lang.NullPointerException

at net.minecraft.client.Minecraft.runTick(Minecraft.java:1994) ~[Minecraft.class:?]

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1028) ~[Minecraft.class:?]

at net.minecraft.client.Minecraft.run(Minecraft.java:951) [Minecraft.class:?]

at net.minecraft.client.main.Main.main(Main.java:164) [Main.class:?]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]

at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]

at GradleStart.main(Unknown Source) [start/:?]

[02:51:33] [Client thread/INFO] [sTDOUT]: [net.minecraft.client.Minecraft:displayCrashReport:388]: ---- Minecraft Crash Report ----

// Ouch. That hurt :(

 

Time: 07/07/15 02:51

Description: Unexpected error

 

java.lang.NullPointerException: Unexpected error

at net.minecraft.client.Minecraft.runTick(Minecraft.java:1994)

at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1028)

at net.minecraft.client.Minecraft.run(Minecraft.java:951)

at net.minecraft.client.main.Main.main(Main.java:164)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source)

at GradleStart.main(Unknown Source)

Ernio Reality Controller

Ernio

Posted
Posted

*Ernio focuses on blank page with white-colored letters that supposed to be OP's code*

 

We are not wizards - post your code.

1.7.10 is no longer supported by forge, you are on your own.

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

*Ernio focuses on blank page with white-colored letters that supposed to be OP's code*

 

We are not wizards - post your code.

				FMLClientHandler.instance().setupServerList();//might be unnecessary
			FMLClientHandler.instance().connectToServer(new GuiMultiplayer(FMLClientHandler.instance().getClient().currentScreen), new ServerData("", Main.getConfigData().getIP() + ":" + Main.getConfigData().getPort()));

SanAndreaP World Shaper

SanAndreaP

Posted
Posted

Try using 

FMLClientHandler#connectToServerAtStartup(hostAddress, port)

 

What it does is basically setupServerList and connectToServer, but also first pings the server for availability.

Don't ask for support per PM! They'll get ignored! | If a post helped you, click the "Thank You" button at the top right corner of said post! |

mah twitter

This thread makes me sad because people just post copy-paste-ready code when it's obvious that the OP has little to no programming experience. This is not how learning works.

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

I keep getting a nullpointer D:

 

java.lang.NullPointerException
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1994) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1028) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:951) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:164) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]
at GradleStart.main(Unknown Source) [start/:?]

My code 

FMLClientHandler.instance().connectToServerAtStartup(Main.getConfigData().getIP(), Integer.parseInt(Main.getConfigData().getPort()));

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

Look at the line that the crash points to and figure out what is null there and what you are doing that is causing that.

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

^I think the nullpointer is caused because there is no arguments on line 28 at net.minecraft.launchwrapper.Launch.main?

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

- Less bumping, more figuring it out yourself.

- There will be no spoonfeeding.

- net.minecraft.client.Minecraft.runTick(Minecraft.java:1994) <- THIS is where the crash occurs. Look at that line.

it it to do with me creating the connection on a keybind?

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

I will not write any more responses until you follow what I told you:

Look at the line that the crash points to and figure out what is null there and what you are doing that is causing that.

 

At least tell us what is null on that line so we can do your work for you.

EntityPlayer.itemInUse (ItemStack)

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

Use a debugger.

instead of a nullpointer, now I am getting a runtime error

[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.RuntimeException: No OpenGL context found in the current thread.
Exception in thread "Timer-0" [15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at org.lwjgl.opengl.GLContext.getCapabilities(GLContext.java:124)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at net.minecraft.client.gui.GuiMainMenu.<init>(GuiMainMenu.java:125)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at cpw.mods.fml.client.FMLClientHandler.connectToServerAtStartup(FMLClientHandler.java:806)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at net.RPD.BlazeBot.Bot$3.run(Bot.java:67)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at java.util.TimerThread.mainLoop(Unknown Source)
[15:52:20] [Timer-0/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: 	at java.util.TimerThread.run(Unknown Source)

and my event

	@SubscribeEvent
public void onDisconnect(ClientDisconnectionFromServerEvent e) {
	Timer t = new Timer();
	t.schedule(new TimerTask() {
		@Override
		public void run() {
			FMLClientHandler.instance().connectToServerAtStartup("192.168.1.8", 69);
		}
	}, 5000);
}

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

The message tells you exactly what is wrong: you must interact with the game on the main thread. Timer obviously uses a 2nd thread.

k, I thought the game was multi threaded xdd, going to make new timers now on the same thread -_-

Gingerbreadman Stone Miner

Gingerbreadman

Posted
  • Author
Posted

This is typical "try over and over again util you succed" case.

 

1. Setup ClientTickEvent and ClientDisconnectionFromServerEvent.

2. Create some static boolean "shouldAutoReconnect".

3. When you get DC, in your ClientDisconnectionFromServerEvent you can set boolean to true.

4. Use ClientTickEvent to check that boolean, then check current screen (instanceof GuiSomething).

5. Make whatever if statements you need and create some incrementation - make client try to reconnect every e.g 2sec (if conditions are met and you are not ingame) or whatever.

6. Done.

 

If you would need to directly know the moment when client faild to connect you can check if current screen displays error msg. Again - you need to do that per-tick with ClientTickEvent.

 

At least that''s what I'd do.

Whats the name of the GUI screen of the actual game ingame?

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